Christmas time gift packaging – help Salvation Army prep gift bags for angel tree. Angel tree is basically an annual program were a child / family can register with Salvation Army for a free bag of Christmas presents. These children for some reason or another do not have the ability/ accessibility to get gifts, maybe a bad home situation, low money, etc. Therefore, one of the ways these families can feel the spirit of Christmas and holidays is through the angel tree program sponsored by the Salvation army.